GATE CE 2018 CE Q14: Highway Pavements

A bitumen sample has been graded as VG30 as per IS : 73-2013. The ‘30’ in the grade means that

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penetration of bitumen at 25°C is between 20 and 40

viscosity of bitumen at 60°C is between 2400 and 3600 Poise

ductility of bitumen at 27°C is more than 30 cm

elastic recovery of bitumen at 15°C is more than 30%

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